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12442004443 = 112412507963
BaseRepresentation
bin10111001011001100…
…11110101111011011
31012010002211022110101
423211212132233123
5200440123120233
65414335200231
7620216202301
oct134546365733
935102738411
1012442004443
115305207100
1224b2976077
1312338c210b
148605d8271
154cc47ec7d
hex2e599ebdb

12442004443 has 12 divisors (see below), whose sum is σ = 14009486904. Its totient is φ = 11035032800.

The previous prime is 12442004437. The next prime is 12442004461. The reversal of 12442004443 is 34440024421.

It is not a de Polignac number, because 12442004443 - 217 = 12441873371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12442004543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1249021 + ... + 1258942.

It is an arithmetic number, because the mean of its divisors is an integer number (1167457242).

Almost surely, 212442004443 is an apocalyptic number.

12442004443 is a deficient number, since it is larger than the sum of its proper divisors (1567482461).

12442004443 is a wasteful number, since it uses less digits than its factorization.

12442004443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508026 (or 2508015 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 12442004443 its reverse (34440024421), we get a palindrome (46882028864).

The spelling of 12442004443 in words is "twelve billion, four hundred forty-two million, four thousand, four hundred forty-three".

Divisors: 1 11 41 121 451 4961 2507963 27587593 102826483 303463523 1131091313 12442004443